About MachineThis is an oil free high quality compressor, big capacity power, supply clean and dry air source for industry and other application.All parts are branded, it's very high quality so it's widely adopted in medical, food, house, and environment areas.Less noisy, air pressure is more stable, long service life.Automatic control system, when air press is less than the settled value, motor will turn on or off automatically.1 year free quality warranty, 100% copper reels.